685990713326 has 8 divisors (see below), whose sum is σ = 1029030240024. Its totient is φ = 342980633320.

The previous prime is 685990713323. The next prime is 685990713341. The reversal of 685990713326 is 623317099586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685990713323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7303340 + ... + 7396671.

It is an arithmetic number, because the mean of its divisors is an integer number (128628780003).

Almost surely, 2^685990713326 is an apocalyptic number.

685990713326 is a deficient number, since it is larger than the sum of its proper divisors (343039526698).

685990713326 is a wasteful number, since it uses less digits than its factorization.

685990713326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14723346.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 685990713326 in words is "six hundred eighty-five billion, nine hundred ninety million, seven hundred thirteen thousand, three hundred twenty-six".